saunders



(No Model.) 4 Sheets-Sheet 1.

' W. L. SAUNDERS COMBINED DNILLING, GHANNELING, AND GADDING MACHINE. No.894,212. latented .888.

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N. PETERS. PhunrLielvoraphnr. wnshingwn. D. C,

QNo Model.) 4 Sheets-Sheet 2.

W. L. SAUNDERS COMBINED DRILLING, GHANNELING, AND GADDING MACHINE.

No. 394,212. Patented Deo. 1l, 1888.A

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W @Erm @m1/Lewes (No Model.) 4 Sheets-Sheet 3.

W. L. SAUNDBRS GOMBINBD DRILLING, GHANNBLING, AND GADDING MACHINE.

No. 394,212. Patenyg Deo. 11, 1838 l .2 E: in

XD William L..Sauners l N- PETRS, Pbolovutllugrnphsr. Wainlnsm D12v 4Sheets-Sheet 4.

(No Moden.)

W. L. SAUNDERS COMBINED DRILLING, GHANNELING, ANDGADDING MACHINE.

No. 394,212. Patented Dec. 1'1. 1888.

STATES PATENT Orricjn,

YVILLIAM L. SAFNDERS, OF NEV YORK, il. Y., ASSIGNOR TO THE NGERSOLL ROCKDRILL COMPANY, OF SAME PLA(E.

COMBINED DRILLING, CHANNELING AND @ADDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 394,212, dated December11, 1888.

Application filed June 9, 1887. Serial No. 240,316. (No model.)

To all 107mm/ t muy concern: the caster-wheels are removed from theiioor Be it known that I, 'ILLIAM L. SAUNDERS, an d renderedinoperative, and the machine a citizen of the United States, residingIat New supported upon the ends of the legs them- York, in the county ofN ew York, State of selves, or upon leg-pins, so as to have a solid 5 5New York, have invented certain new and and firm bearing upon the floorof the quarry.

useful linprovements in a Combined Drilling, According to the priorstate of the art two Channeling, and Gad 1ling Machine, of which ioperations have been necessary to channel the followingI is alescription. out a block of stone, a gadderbeing employed My inventionconsists in an improved mato put in a row of horizontal holes at thebot- 6o 1o chine for sinking round holes and cutting tom of the bench,and a chanucling-machine longitudinal channels in stone, it being beingused to cut an open channel from adapted to perform both theprocessesknown above, the mass of stelle inclosed between the in the art ofstone-quarrying as channelchannel and the row of holes being' broken ingand gg-adding, the same organization out by wedges. Various other formsof ap- 15 being adapted for use as a gadder capable of paratus have beenused for this purpose, inoperating in any position, and with slightcludingpereussionwdrills, with which a series modification and thesubstitution of a gang of non-communicating round holes were of drillsfora single drill-steel it becomes a bored, the partitions between saidholes bechanncling-machine-that is, one capable of ing broken down by abrooch, thus forming 7o 2o cutting a continuous open channel, also, in achannel. Rotating diamond drills were any desired position. also usedfor the saine purpose, also the chan- My improved machine comprises areciproheling-machines of the kind previously recating directactingpercussion rock drill ferred to. 'Up to the present time no othermamounted in a shell-piece, within which it is chine has been producedor method devised vertically adjusted by means of a feed-screw by whichboth voperations are satisfactorily in the ordinary manner. The shell iscarried carried out. upon a pair of horizontal supports, preferably Thedetails of construction, arrangement, tubular, which supports arecentrally pivoted and operation of the various parts and eleupon a rod,br, or continuous screw, which ments of my apparatus will be hereinafter8o no forms the axis of the drilling apparatus, the fully described,reference being had to the tubular supports and engine being radiallyaccompanying drawings, in whichadjustable thereupon and adapted to besup- Figure l is an elevation, partly in section, ported at any angle,from the horizontal to showing my combined channeling and gad thevertical, the axial support being also ding machine in position as achanneler, but 3 5 formed with a continuous screw-thread,which, with themachine raised and the caster-wheels being connected by suitable gearingwith the down,in position to be moved in the direction carriage carryingthe drilling-engine, affords of the work. Fig. t2 is an end View of thesnpmeans by which the engine is moved laterports andlateral feedingmechanism, the relaally in eithendirectton along its supports tiveposition ofthe shell and enginebeingindi- 9o 4o when making an open cutor channel. The cated in dotted lines. Fig. 3 is an end view,extremities of the axes upon which the tu partly in section, looking inthe direction of bular supports are mounted pass through the arrow, theengine and shell being removed. end pieces which carry extensiblesleeved Figs. i and 5 are detail views of the pawlarms,- within whichlatter are adjustably sehead, showing the means for throwing the 45cured the legs upon which the machine as pawls out of action to stop therotation of the a whole is supported, and the legs themdrill-rod andpiston when the machine is used selves are each provided at itsextremity with as a channeler. Figs. 6, 7, and S are detail acaster-wheel, upon which the machine is views of the preferred form ofcaster-wheel and supported when not in operation, in order tosupporting-leg. Fig. 9 is a side elevation of roo 5o facilitate itstravel from place to place; but the machine in position to operate as agadder. i

when in operation by a simple contrivance Fig. lO is a detail viewshowing a portion of the piston-rod, the chuck, and a drill-steel inposition. Fig. 11 isY a section through the shell and chuck on the line11 11 of Fig. 1. Fig. 12 is an elevation ot the drill-clamp, showing thedrills in position. Fig. 13 is a drill, showing the cross-head uponwhich the clamp and drills are secured, together with a section of thechuck an d portion of the piston-rod, showing` the dowel extending fromsaid crosshead thereinto. Fig. 1i is an enlarged detail showing amodified form of easter-wheel with portion ot' leg in position.

Similar letters denote like parts throughout.

The drilling-en gine A, which is a percussion rock-drill, steam or airdriven, is mounted upon a shell, B, which latter is formed with groovesor ways b, within which the drillingengine is held and guided when movedby its feed-screw a, and in the lower portion of which also move wings Cof the cross-head C, to which the drill-clamp D is secured by bolts d,the said shell B being almost iiat in form, so as to occupy as littleplace as possible, and being also extended downward a sufficientdistance to hold and guide the cross-head at the lowest possibleposition throughout its entire stroke; but 1 sometimes construct theshell of less length, using a detachable extension secured to its lowerportion, and upon which the drillclamp is guided and supported. Thepistonrod a terminates in a chuck, E, within which the inner end of thedril -steel E', or the shank or dowel F, secured to the cross-head C',may be interchangeably secured by means of bolts e. The dowel F is ofthe same size as the inner ends of the drill-steel, and is a piece ofsteel or iron of smaller cross-section or weaker than the piston-rod, sothat instead of the entire strain and risk of breakage being upon thepiston-rod, as would be the case were the cross section secured directlythereto, the dowel, being weaker, will give way soonest and be bent orbroken, thus preventing injury to the piston-rod, while the dowelitself, being usually only secured to the cross-head by a set screworpin,f, can readily and quickly be replaced at any time.

The drill-clamp D is a piece of metal substantially oblong in form andlarge enough to contain a recess for the reception oi? the desirednumber of drills, (in the present instance three,) the drills being letin said recess with their ends abutting its top side, in which positionthey are secured by a set-screw, d. In the'ordinary course of wear thedrills G willV become of uneven length; but by the insertion of a smallstrip of metal at the end or ends of the shorter ones their inequalitiesof lengthY will be overcome. rlhe drill-receiving recess in the clamp Dmaybe slightly deeper than the thickness of t-he drills, and the face ofthe cross-head C is formed with a slight projection, g, registering withsaid recess. Vhen the clamp is in position, its flat top side, e', williit under and abut the under-cut porportion f of the cross-head, theprojection g projecting into the recess and against the body of thedrills G, in which position the parts are firmly secured together byclampbolts d, which -iit into the coinciding recess H, formed in bothclamp and cross-head.

The pawl-head hot the drilling-engine contains the rifle-bar or otherdevice, by means of which and the ratchet l and pawls rotary movementAis imparted to the piston and drill-steel E at cach reciprocationthereof when drilling round holes. This movement cannot continue whenthe machine is operated as a channeler, and under those conditions thepawls 'i are held away. from the ratchet by means of screw stop-bolts`z, which extend through the pawl-head from its eXte- `rior, and can bya few turns of the wrench be driven in or out to withhold or release thepawls I, according to the work required of the machine. Springs J andbolts j are provided, the inner extremities of said springs bearingagainst the pawls I, but holding them in operative position whenreleased by the stopbolts i.

The frame upon which my improved machine is supported and carriedconsists of two end pieces, K, each of which is provided with upper andlower parallel tubular bearings, k, within which move horizontal arms L,formed with or provided at their outer ends with tubular leg bearings orlsupports Z, within which are adj ustably secured the legs M, upon whichthe apparatus is carried, the legs themselves being verticallyadjustable inA their supports and the arms L, to which said supports areattached, being horizontally and radially adjustable in. their bearings76,(the latter feature being indicated in dotted lines in Fig. 1,) thusrend erin g the legs universally adjustable.

The leg bearin or supports Z are shown as rigidly attached to the armsL, and at such an angle as will slightly spread their lower eX-trenii'ties. 1t will be obvious, however, thatthis angle can be madegreater or less according to circumstances, and, it' desired, the arm Land supports Z may be adj ustably connected. Between the end pieces, K,is supported a frame, consisting ot' a pair of tubular guides, N N,which are preferably plain metallic tubes, although they may be solidbrass, attached in equidistant positions trom the center of yokes orheads yn n', formed or provided with hollow cylindrical proj eetions O,upon which the tubes are firmly iitted, and to which the heads arerigidly attached by means oi' longitudinal bolts m, passing through bothheads, projections, and tubes, and uniting them into a strong and rigidframe, the tubes N being iirmly'held at their extremities Yboth bylongitudinal pressure and the internal support of the proj eetions Oupon the heads n yn.

The frameN N is pivotally attached to the end pieces, K, and at the sametime supported thereon by means of a strong central longitudinal bar, Jwhich passes through the axes of the yokes la n and through the centersof the end pieces, K, its extremity or extremities be- IOO IIO

6o support t'or the machine.

ing screw-threaded and provided with jamnuts j je, by loosening whichthe frame, together with the drilling-engine, can then be turned intoany desired position, the extremes l beine' indicated in Fie's. l and lland when in the desired position, by setting said jam-nuts the heads n awill be tirmly held between the end pieces, K, and further rotation ot'the frame N N will be eltectually prevei'lted. The nuts io n. nmay,however, be separately provid ed with axial-supports, in which casethe feed-screw J need not project therethrough, being' merely vsecuredthereto.

The axial bar J is provided .with a screwthread extending the entiredistance between fthe heads n n', which screw-thread carries aninternally-sei'ew-threaded gear-wheel, P, in mesh with a g'ear-pinion,p, trom the axis ot .which extends a hand-lever, P. Upon the QO-tubularsupports N is mounted a laterally moving' or sliding' carriage, (-2, tothe outer side of which the shell ot' the drilling-engine, (indicated indotted lines in Fig'. 2,) is secured by means of one or more suitablebolts, q, extend- *2 5 ing' therefrom. The carriage Q is formed withsplit bearings R R, adjustable for wear, and it is further formed withan arm, q', supporting the axis ot' the beveled pinion p. The splitbearings being' adjustable, all undesirable lateral motion can hereadily eliminated,

and in order to secure the drill in its desired position, in stead oftwo pairs of bolts, the lower bearing", R', is provided with an extendedhand-screw, r, by means of which the bearing R can be lirmly clan'ipedupon its support,

4o vided with caster-wheels S, which wheels are formed with or rigidlysecured to their axles s, which are then placed in position in recessesT in the bifurcations referred to, where they `are held in position bytransverse bolts t.

l Said axles are also drilled from one extremity nto their centers,internally screw-threaded, and each provided with a set-screw, U, andthe caster-wheels themselves are drilled through to form one or moresets of holes, u, all ot' 5o them intersecting the axis and adapted toreceive the leg-pins V, which are inserted when the machine is inoperative position. By placing' a bar under projecting' axis s the leg'may be easily raised from the ground and said foot- `pin passed'throughone or other ot' the sets of apertures in the caster-wheel, and when inposition is firmly secured by means oi' the collar T and set-screw ll,thus readily and quickly converting' the rotating' into a solid As shownin Fig. 14, this arrangement may be moditied by forming' the leg-pinsdirectly upon the lower extremity of the legs themselves, in which casethe bifurcated caster-support is a separatelyin position by means of anadjustable collar,

7, or wedge YV", and the separate leg-pins are dispensed with.

In Fig. 9 the machine is shown with the frame and engine turned to ahorizontal position, where it may be used 'for gadding or for cuttingahorizontal channel. ln this tig'ure the machine is shown as standing'upon its own feet-that is, resting upon the pointed extremities oftheleg-bars lll-this being' a proposed modication, the caster-wheels,similar to those shown in Fig'. l-t, having' been ten'iporarily removedin order to lower the engine as much as possible. ln practice,however,the casters will always be in position, the leg-pins being' projectedtherethrough to a greater or less extent when the machine is inoperation, in order to afford a solid and nonrotating support for the drillin apparatus.

In operation when it is desired to drill what are known as round holes,whether horizontal, vertical, o1' at any intermediate angle, the machineis brought to position, traveling upon its caster-wheels, and onarriving' the ends are raised and the leg-pins inserted through thecaster-wheels projecting to a greater or less extent, according to theinequalities ol thc ground, when they are tixed in position and altord alirm and level bearing, The engine is then provided with an ordinarydrill-steel, which clamped in the chuck, and round holes are drilled,the engine being' moved along its tubularsupports in the desireddirection, after the completion ot' each hole, by means ot' thehand-crank 1?. When it is desired to use the machine as a channeler, itis brought to position as described, and a round hole is put down ateach end otl the cut, which, under ordinary circuinstances, would be thelength between the heads `11 n', a distance ol", say, ten feet. Afterthe end holes have been drilled in position to torm the beginning and`end of the desired cut, or one hole has been pnt down at the desireddistance from the terminatitm at the last cut, or from the end ol thebench, the drill-steel E is removed and the cross-head C and gang otldrills G substituted therefor, when by operating the hand-lever l, andcontinuously moving' the engine so equipped back and torth along' andabove the space between the perpendicular terminals of the proposedchannel, an open eut or channel is made, starting' Vfrom the end hole,or from the termination ofthe previous cut, and gradually covering' theentire distance, the gang of drills operating' at right angles withtheir support, precisely as when the round holes were put in, exceptthat the bottom pawls are thrown out of action by means ot thestop-bolts z". In the cutting of a channel the cut made as long as thedistance between the perpendicular extremities, the engine and drillsbeing' fed downward at each end ot the cut, and then by moving thehand-lever P fast or slow, and according' to the nature ot" the materialbein g operated upon, each horizontal cutis sunk to the de- ICO sireddep th and the operation continued until a completed channel is formed,having perpendicular boundaries and not slanting away from its apparentextremities, as is the casein all other channcling-machines, except whena separate cut is male for the purpose of straightening the ends of thechannel, which must be done with the cutting-tools at an an.- gle fromthe perpendicular.

It will be obvious that various other changes and modifications may bemade Without departing from the scope or nature of my invention, andtherefore, although havin g described the same with particularity, I donot confine myself to the precise details shown and described.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s

l. The combination, with the engine-supporting frame, of a carriage onsaid frame, a drilling-engine secured upon said carriage, an axialfeed-screw upon Which said carriage is pivoted, aninternally-scrciv-threaded gearwheel mounted upon said feed-screw andsecured to the carriage, and a beveled gear-pinion, also mounted uponsaid carriage and engaging the gear-wheel and having a handcrankextending therefrom, substantially as described.

2. The combination of a pair of parallel tubes or bars, end piecessupporting and uniting said bars, a direct-acting percussionrockdrilling engine mounted upon said supports, a feed-screw passingthrough the axes of the end pieces, to which said supports aresecured,and end pieces Within which said feed-screw is immovably secured,substantially as described.

3. The combination, With suitable end supports, of the engine-supportingframe consisting of tubes N, heads n n', provided With projectionslitting into the said tubes, and the bolts passing therethrough,substantially as described.

4. The combination, With a frame adapted to carry a drilling-engine, ofend supports formed with tubular bearings, laterally-extensible arms insaid bearings, the extremities of said arms being formed into legbearings or supports, and supporting-legs arranged to be adjustablysecured therein, substantially as described.

5. The combination, with an engine-carrying frame, of end bearings towhich said frame is pivotally connected, tubular supports attached tosaid end bearings, and laterally-extensible leg-supports fittingtherein, substantially as described.

6. In a drill-carrying frame, caster-Wheels attached to each legthereof, said Wheels being formed with a radial perforation, and aleg-'pin arranged to iit into and project through said perforation tosupport the drill-frame, substantially as described.

'7. In an engine-carrying frame, legs therefor formed with bifurcationsat their lower extremities, a supporting-wheel for each leg, said Wheelsbeing provided with axial perforations and having set-screws passinglongitudinally through or into the axles thereof, and leg-pins arrangedto pass through the said Wheels, and to be secured in any desiredposition by the said set-screws, substantially as described.

S. In a drilling-engine frame, the combination, with a supporting-leghaving bifurcated lower extremity, of a supporting-Wheel therefor formedWith. axial perforations extending therethrough, means for securing saidaxle in the bifurcated extremity of the supportingleg, a leg-pinarranged to be inserted in the aperture extending through the Wheel, anda set-screw for securing the inserted pin in position, substantially asdescribed.

9. In a drilling-engine, the combination of a shell having internalguideways and extended downwardly belonT the travel or feed of theengine, a cross-head drill-clamp having faces traveling in saidguideways, and a removable dowel or shank extending between thepiston-rod and cross-head, substantially as described.

l0. In a drilling-engine, the combination of a'supporting-shell havingguides for the engine, and a cross-head having faces moving in the guideWays and secured to the engine bya removable doWel or shank,substantially as described.

ll. In a drilling-engine, the combination of a supporting-shell havingguides for the engine and cross-head, a cross-head having faces movingin the guideways and secured to the piston by removable doWel or shank,and a drill-clamp arranged tov be secured to and form part of thecross-head, substantialbT as described.

12. In a drilling-engine, the combination, with a shell extending belowthe feed of the engine, of a cross-head drill-clamp supported and guidedin said extended portion of the shell, and connections between thecross-head and piston-rod, consisting of a doWel or shank of lessstrength than the piston-rod, substantially as described.

In testimony whereof I hereto affix my signature in presence of twoWitnesses.

VILLIAM L. SAUNDERS.

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